20265780272111 has 8 divisors (see below), whose sum is σ = 22117575916800. Its totient is φ = 18415559958040.

The previous prime is 20265780272077. The next prime is 20265780272267. The reversal of 20265780272111 is 11127208756202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20265780272111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20265780272611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393805751 + ... + 393857208.

It is an arithmetic number, because the mean of its divisors is an integer number (2764696989600).

Almost surely, 2^{20265780272111} is an apocalyptic number.

20265780272111 is a deficient number, since it is larger than the sum of its proper divisors (1851795644689).

20265780272111 is a wasteful number, since it uses less digits than its factorization.

20265780272111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787665309.

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 20265780272111 in words is "twenty trillion, two hundred sixty-five billion, seven hundred eighty million, two hundred seventy-two thousand, one hundred eleven".